Firstrade

Firstrade Securities is a commission-free online brokerage offering trading in stocks, ETFs, options, mutual funds, and fixed income securities with no account minimums and no inactivity fees. Firstrade does not publish an official public REST API; programmatic account access is available through the Plaid financial data aggregator, which supports account balance retrieval, transaction history, investment holdings, and asset reports for Firstrade accounts. Community-developed unofficial Python SDKs also exist for session- based automation but are not affiliated with or endorsed by Firstrade.

Firstrade publishes 2 API contracts indexed on the APIs.io network, including Plaid API, and 1 more. Tagged areas include Brokerage, Commission-Free Trading, Stocks, ETFs, and Options.

The Firstrade catalog on APIs.io includes 1 Spectral governance ruleset.

Firstrade’s developer surface includes authentication, pricing, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.5/100 thin ▬ flat Agent 36/100 agent ready Front door AI 1/6 silent Heartbeat 79/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

1 published contract

BrokerageCommission-Free TradingStocks ETFs Options Mutual Funds Fixed Income Retirement IRA Investing Finance Open Banking Financial Services

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Capital Markets Trading Management

BC-1370

Orders

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 37.5/100 · thin

Contract Quality 9.9 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 6.1 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.1 / 15

Create-or-Update Ergonomics 3.9 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 28.6 — up to +14.3 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →
Access Clarity scores 40.4 — up to +11.9 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/firstrade/apis.yml: open an issue on github.com/api-evangelist/firstrade to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Firstrade Account Data API (via Plaid)

Access to Firstrade account data is available through the Plaid financial data aggregation platform. Plaid supports four product categories for Firstrade: Assets (consolidated b...

Firstrade Plaid API

The Plaid API

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Firstrade Unofficial Account API

OPEN COLLECTION

Firstrade Unofficial Account Authentication API

OPEN COLLECTION

Firstrade Unofficial Account Market Data API

OPEN COLLECTION

Firstrade Unofficial Account Orders API

OPEN COLLECTION

Firstrade Unofficial Account Watchlist API

OPEN COLLECTION

Firstrade API pricing

Not yet checked against Firstrade's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Commission-Free Brokerage Account	—
Plaid Developer Access (Data Aggregation)	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

0 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Firstrade

1 quoted statement, read from Firstrade's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Firstrade

16 quoted statements, read from Firstrade's own page on 2026-11-09.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Firstrade

3 quoted statements, read from Firstrade's own page on 2026-11-09.

ELIGIBILITY

FinOps 1

Cost, billing, and metering signals for API financial operations.

Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Firstrade API Rules

68 rules · 54 error-severity 13 warn-severity 1 info-severity

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Firstrade Authentication

apiKey · 1 scheme

SECURITY

Firstrade Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Firstrade Agentic Access

350 operations · 235 acting · 9 human-in-the-loop

350 operations · 235 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

PlaidIntegration

PlaidIntegration

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

HelpCenter

HelpCenter

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

PrivacyPolicy

TermsOfService

UsageTerms

Company 2

The organization behind the API

Website

Website

PressCenter

PressCenter

Other 6

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Trading

Trading

MobileApp

MobileApp

OpenBankingTracker

OpenBankingTracker

DataProcessing

DataProcessing

Eligibility

Eligibility

Source (apis.yml)

aid: firstrade
name: Firstrade
description: Firstrade Securities is a commission-free online brokerage offering trading in stocks, ETFs, options, mutual
  funds, and fixed income securities with no account minimums and no inactivity fees. Firstrade does not publish an official
  public REST API; programmatic account access is available through the Plaid financial data aggregator, which supports account
  balance retrieval, transaction history, investment holdings, and asset reports for Firstrade accounts. Community-developed
  unofficial Python SDKs also exist for session- based automation but are not affiliated with or endorsed by Firstrade.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/firstrade.png
url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
type: Index
tags:
- Brokerage
- Commission-Free Trading
- Stocks
- ETFs
- Options
- Mutual Funds
- Fixed Income
- Retirement
- IRA
- Investing
- Finance
- Open Banking
- Financial Services
apis:
- name: Firstrade Account Data API (via Plaid)
  description: 'Access to Firstrade account data is available through the Plaid financial data aggregation platform. Plaid
    supports four product categories for Firstrade: Assets (consolidated balance summaries and asset reports), Balance (current
    and available account balances), Transactions (up to 24 months of transaction history), and Investments (retirement, brokerage,
    and crypto holdings). Authentication is handled via Plaid Link — Firstrade customers connect their accounts through Plaid''s
    consent-based flow. Data is returned in JSON format through Plaid''s standard endpoints. Geographic coverage is United
    States only.'
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Account Data
  - Balances
  - Transaction
  - Investment
  - Assets
  - Open Banking
  - Plaid
  tags_raw:
  - Account Data
  - Balance
  - Transactions
  - Investments
  - Assets
  - Open Banking
  - Plaid
  properties:
  - type: Documentation
    url: https://plaid.com/institutions/firstrade/
  - type: APIReference
    url: https://plaid.com/docs/api/
  - type: Authentication
    url: https://plaid.com/docs/link/
  - type: TermsOfService
    url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
  - type: PrivacyPolicy
    url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/plans/plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/rate-limits/rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/firstrade/refs/heads/main/finops/finops.yml
  contact:
  - FN: Firstrade Customer Support
    url: https://www.firstrade.com/support
    phone: 1-800-869-8800
- aid: firstrade:firstrade-plaid-api
  name: Firstrade Plaid API
  description: The Plaid API
  humanURL: https://plaid.com/institutions/firstrade/
  baseURL: https://production.plaid.com
  tags:
  - Plaid
  tags_raw:
  - plaid
  properties:
  - type: OpenAPI
    url: openapi/firstrade-plaid-api-openapi.yml
common:
- type: Plans
  url: plans/plans.yml
- type: RateLimits
  url: rate-limits/rate-limits.yml
- type: FinOps
  url: finops/finops.yml
- type: CapabilityMap
  url: capabilities/firstrade-capability-edges.yml
  name: Firstrade Business Capability Map
- type: AgenticAccess
  url: agentic-access/firstrade-agentic-access.yml
- type: DomainSecurity
  url: security/firstrade-domain-security.yml
- type: Authentication
  url: authentication/firstrade-authentication.yml
- type: Website
  url: https://www.firstrade.com/
- type: Trading
  url: https://www.firstrade.com/trading
- type: Pricing
  url: https://www.firstrade.com/trading/pricing
- type: HelpCenter
  url: https://help.firstrade.com/
- type: PrivacyPolicy
  url: https://www.firstrade.com/content/en-us/aboutus/privacypolicy
- type: TermsOfService
  url: https://www.firstrade.com/content/en-us/aboutus/termsofuse
- type: PressCenter
  url: https://www.firstrade.com/press
- type: MobileApp
  url: https://apps.apple.com/us/app/firstrade-invest-trade/id405325225
- type: OpenBankingTracker
  url: https://www.openbankingtracker.com/provider/firstrade
- type: PlaidIntegration
  url: https://plaid.com/institutions/firstrade/
- type: UsageTerms
  url: terms/firstrade-terms-of-service.yml
- type: DataProcessing
  url: privacy/firstrade-privacy-policy.yml
- type: Eligibility
  url: eligibility/firstrade-eligibility.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Firstrade API — frequently asked questions

Does Firstrade have an API?

Yes. APIs.io lists 2 APIs from Firstrade, including Firstrade Account Data API (via Plaid) and Firstrade Plaid API.

Is there an OpenAPI specification for the Firstrade API?

Yes. APIs.io indexes 1 OpenAPI specification for Firstrade, each linked for download from this page.

How do I authenticate with the Firstrade API?

Firstrade uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Firstrade Authentication.

How much does the Firstrade API cost?

APIs.io lists 2 pricing plans for Firstrade, with each plan's price, limits and inclusions under Pricing on this page.

Is the Firstrade API ready for AI agents?

Firstrade has a Kin Score of 37.5 out of 100 (thin) and an Agent Readiness score of 35.9 (agent-ready), scored by API Evangelist on 2026-11-13.

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